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Finding the Fourth Proportional to 876,435, 1,209,480.39 and 474,027

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Solution

The fourth proportional to 876,435, 1,209,480.39 and 474,027 is: 654,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,435 : 1,209,480.39 = 474,027 : x
  2. Step 2: Convert to fraction form
    876,435/1,209,480.39 = 474,027/x
  3. Step 3: Cross multiply
    876,435x = 1,209,480.39 × 474,027
  4. Step 4: Simplify right side
    876,435x = 573,326,360,830.53
  5. Step 5: Solve for x
    x = 573,326,360,830.53/876,435
  6. Step 6: Final answer
    x = 654,157.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.